Influence of aging on gastric ulcer healing activity of the essential oil from Citrus aurantium - Polo, C. [UNESP]; Moraes, T. M. [UNESP]; Rocha, L. R. M. [UNESP]; Hiruma-Lima, Clélia Akiko [UNESP] (Georg Thieme Verlag Kg, 2009)